#fluid-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  display: block;
}

/* Let pointer events pass through content to the fluid canvas */
body > *:not(canvas) {
  pointer-events: none;
}

/* Restore interactivity for links and form controls */
body a,
body button,
body input,
body select,
body textarea {
  pointer-events: auto;
}